Table 2. Characteristics of the floristic diversity in the four villages studied in Mexico.

Village

No. fields/no. plots

Field area (ha)

Morpho-species

Total no. species

No. spp./ha

Mean no.spp./field

S. Lorenzo

18/120

0.35

149

86

46.3

74.8 (21.8)

T. Colorada

27/108

n.a.

234

92

66.5

55.0 (20.6)

S. Miguel

46/184

0.92

115

85

40.9

61.9 (17.8)

S. Fernando

20/158

1.10

216

174

48.2

128.4 (34.7)

Notes: No. fields/no. plots is a measure of the sampling effort in each village. Field area is the average size of a field in hectares. Morpho-species and total species are estimates of the cumulative richness, following either folk or scientific taxonomy. No. spp./ha represents the average number of species encountered in one hectare and was calculated by dividing the species number in a given field by the surface of that field. Mean no. spp./field represents the average number of species encountered in one field (and 1 SD).